题目内容
计算
(
+
)÷
6×
÷
.
(
| 5 |
| 9 |
| 11 |
| 19 |
| 11 |
| 19 |
6×
| 1 |
| 7 |
| 6 |
| 7 |
考点:分数的四则混合运算
专题:运算顺序及法则
分析:(1)运用乘法分配律解答,
(2)按照从左到右顺序计算解答.
(2)按照从左到右顺序计算解答.
解答:
解:(1)(
+
)÷
=
×
+
×
=
+1
=1
;
(2)6×
÷
=
÷
=1.
| 5 |
| 9 |
| 11 |
| 19 |
| 11 |
| 19 |
=
| 5 |
| 9 |
| 19 |
| 11 |
| 11 |
| 19 |
| 19 |
| 11 |
=
| 95 |
| 99 |
=1
| 95 |
| 99 |
(2)6×
| 1 |
| 7 |
| 6 |
| 7 |
=
| 6 |
| 7 |
| 6 |
| 7 |
=1.
点评:本题主要考查学生依据四则运算计算方法,以及正确运用简便方法解决问题的能力.
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